This is the second single co-produced by Hyde and K.A.Z and has a bonus track "Unexpected (Dist.
)", a rock version of the first track from Hyde's first solo album Roentgen (2002).
"Season's Call" was used as the second opening theme for the Japanese anime Blood+ and topped Oricon charts, returning Hyde to the #1 position on the charts after his successful sixth single "Countdown".
[1] It was certified gold by RIAJ for selling over 100,000 copies[2] and was the 97th best-selling single in Japan in 2006.
The "limited edition," in addition to the audio CD, came with a DVD of the "Season's Call" music video and Blood+ sticker.